Conserved RGF1 peptide signaling regulates root meristem development through ROS in Arabidopsis and rice

Our study identifies OsRGF1-1 as the rice counterpart of Arabidopsis RGF1. Rice Osrgf1-1 mutants have shorter seminal roots, smaller root meristems and less superoxide. The OsRGF1-1 peptide reverses these defects and acts through the conserved RGF receptors, showing for the first time that the RGF1–receptor–ROS module controlling root meristem development is shared between dicots and monocots.

Lai J-K, Jhang J-N, Yen H-C, Cho H-Y, Hsiao Y-C, Balasubramaniam H, Tseng C-S, Yamada M. (2026) 具演化保守性之RGF1 胜肽訊號傳遞透過活性氧調控阿拉伯芥與水稻的根部分生組織發育 Journal of Experimental Botany, doi:10.1093/jxb/erag498